I need help with number 3
the equation is 4Al+3O2=2Al2O3

What three things determine the shape and size of a puddle when water is poured out onto a surface

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

Which element below could be and isotope of this atom